1n6FN5 - Online C++ Compiler & Debugging Tool

#include <iostream>
#include <string>
#include <cmath>

using namespace std;


int binaryToDecimal(string binary) {
	int decimal = 0;
	int len = binary.length();
	for (int i = 0; i < len; i++) {
		if (binary[len - 1 - i] == '1') {
			decimal += pow(2, i);
		}
	}
	return decimal;
}
int main() {
	string n1 = "101010";
	string n2 = "110101";

	cout << n1 << " w systemie dziesiętnym to: " << binaryToDecimal(n1) << endl;
	cout << n2 << " w systemie dziesiętnym to: " << binaryToDecimal(n2) << endl;

	return 0;
}